/Engine/Source/Runtime/GeometryCore/Public/DynamicMesh/MeshSharingUtil.h
calling code must not store a reference to ObjectType!
false if the Object was empty, ie ifReleaseSharedObject()has been called
bool AccessSharedObject ( [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< void(const ObjectType &)> ProcessFunc )